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G Compression Help


 
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Fred from MO
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Joined: 23 May 2004
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PostPosted: Mon Oct 01, 2012 11:58 am    Post subject: G Compression Help Reply to specific post Reply with quote

I need some help from you G-guys. Im trying to help a buddy over the phone on his G (late 40s). He ran a compression test and got 45 psi in each cylinder. What is a G supposed to run? This is an all fuel tractor with most likly all fuel pistons. Thanks
 
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Mike M
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Joined: 31 Mar 1998
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PostPosted: Mon Oct 01, 2012 12:25 pm    Post subject: Re: G Compression Help Reply to specific post Reply with quote

I thought about all the all-fuel ones the I&T books says 75 lbs. Does he have the throttle wide open and the choke off ? to get max. air flow.
 
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Fred from MO
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PostPosted: Mon Oct 01, 2012 4:25 pm    Post subject: Re: G Compression Help Reply to specific post Reply with quote

Good question Mike, I assume so but will check with him to make sure. Thanks for the 75 psi.
 
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gtx1967jewison
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PostPosted: Mon Oct 01, 2012 7:10 pm    Post subject: Re: G Compression Help Reply to specific post Reply with quote

That's more than plenty. Especially since they're even. I have an A with 25 & 30#, it runs perfect, hand starts @ -25 in 2-3 cranks, & even with the petcocks open it idles perfect. Ignition & Carb are the key.
 
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